Sleeve-valve internal-combustion engine



H. V. J. JOUFFRET.

SLEEVE vALvE INTERNAL coMusnoN ENG|NE. v APPLICATION FILED MAY 29. |919.

` 1,358,558. EatenaNov. 9,1920..`

2 SHEETS-SHEET l.

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@www 4M/Q@ H. V. J. JOUFFRET.

SLEEVE VALVE INTERNAL COMBUSTION ENGINE.

APPLlcATloN man M^Y29.1919.

1,358,558. Patend Nov. 9, 1920.

.2 SHEETS-'SHEET 2- bearings, I am able to move the cam shaft and oltain access to thesleeves without in-V modifications may be introduced without departing from the principle of my inventione Having now particularly described 4and ascertained the nature of my said invention and in what manner the same is to Vbe performed, I declare that what l claim is zl, ln a sleeve valve internal combustion engine of type including a sleeve and wherein each cylinder head is provided with an inner boss or projection so formed and an ranged as to pr vide between its outerV surface and the inner wall of the cylinder, an annular space for the passage ofthe sleeve, said engine including a controlling shaft and a cam carried by said shaft, a boss so formed and arranged that the sleeve can be extended to the outside and inv which the outer end of the sleeve is provided with a base plate adapted to cooperate directly with the cam carried by the controlling shaft, and v a spring interposed between the base plate and the boss and adapted to keep the base plate' in Contact with-the cai'n, substantially as described.

2. An engine such as that claimed in claim l, in which the boss is formed as a piston and attached to the cylinder by means of a transverse axle thereby providing between said boss and the inner wallof the cylinder an annular space for the passage of the sleeve, the said sleeve being formed with slots through which said axlepasses.

5. rin-engine such as that claimed in claim l, in which the' sleeve` extends outside the cylinder and beyond the outer face of the piston, andV a base plate'at the outer end of said sleeve. f

4. ln an internal; combustionengine ofthe type comprising a plurality of cylinders, a sleeve in leach cylinder, a boss' inV each cylinA der,-so' formed and arranged as toprovichx betweenits outer surface'a'ndV the inner wall of the cylinder an annular space for the pas sage of the sleeve, andso arranged that the ling `shaft mounted above the ends of the sleeves of the respective cylinders, cams carriedv by said shaft, a base plate on the outer end of each sleeve, said plates being adapted to coperate with the cams carried byV said ,controlling shaft, and a spring interposed between each base plate and itsrespective boss, said springs being adapted to maintain said base plates in Contact with their respective cams.V v

ln an internal combustion engine of the type comprising arplurality of cylinders, a sleeve in each cylinder, a boss, formed as a piston and mounted by means of a Vball and socket joint, within each cylinder, saidV boss being soformed as to provide between its outer surface and the inner wall of the cylinder an annular space for the passage of the sleeve, a controlling shaft mounted above the ends of the sleeves of the respective cylinders, cams carriedby said sha-ft, a base plate on the outer end of each sleeve, said plates being adapted to cooperate with the lcams carried by said controlling shaft, and

means interposed between each baseV plate and its respective boss to maintain the plate in contact with its cani. e

6. ln an internal combustion engine of the type comprising a plurality of cylinders, a sleeve in each of said cylinders, a boss in each cylinder, said boss being so formed and arranged as to provide between its outer surface and the inner wall of the cylinder an annular space for the passage of its rcspective sleeve and so Varranged that each sleeve projects beyond its respective boss, a base plate on the outer end of each sleeve, a cam shaft mounted above said cylinders, cams carried by shaft, said shaft being provided witli a joint adjacent each respective cani whereby the cam shaft may be moved to permit ready access to each Vrespective sleeve. Y

ln testimony whereof l have hereunto set iny hand in presence of two subscribing wit nesses.

V HENRI VlC'GE JULES JUFFRET. lVitnesses LUGUI JUTHE, CHAs. P, PnnssLY. 

